<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>TSDemo</title>
    <!-- cdn引入 -->
    <script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.7.1/jquery.js"></script>
  </head>
  <body>
    <div id="app"></div>

    <script>
      const whyName = "zsb";
      const whyAge = 12;
      const whyHeight = 1.888;

      function foo(bar) {
        return "122";
      }

      function Person(name, age) {
        this.name = name;
        this.age = age;
      }
    </script>
  </body>
</html>
